EP0288456A1 - Raffineur a disque possedant de multiples disques rigides coulissants. - Google Patents

Raffineur a disque possedant de multiples disques rigides coulissants.

Info

Publication number
EP0288456A1
EP0288456A1 EP86901692A EP86901692A EP0288456A1 EP 0288456 A1 EP0288456 A1 EP 0288456A1 EP 86901692 A EP86901692 A EP 86901692A EP 86901692 A EP86901692 A EP 86901692A EP 0288456 A1 EP0288456 A1 EP 0288456A1
Authority
EP
European Patent Office
Prior art keywords
refiner
disks
refining
section
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86901692A
Other languages
German (de)
English (en)
Other versions
EP0288456B1 (fr
Inventor
Borje Fredriksson
Philip H Goldenberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beloit Corp
Original Assignee
Beloit Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beloit Corp filed Critical Beloit Corp
Publication of EP0288456A1 publication Critical patent/EP0288456A1/fr
Application granted granted Critical
Publication of EP0288456B1 publication Critical patent/EP0288456B1/fr
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/30—Disc mills
    • D21D1/303—Double disc mills

Definitions

  • the present invention relates to disk refiners, and more particularly to disk refiners for providing a low intensity treatment of pulp fiber to increase the strength characteristics of the pulp and reduce the amount of specific energy required during refining.
  • intensity for a given throughput is proportional to the horsepower per inch of refiner bar crossings, as disclosed in U.S. 696,904, filed January 31, 1985, in which specific operational parameters of a refining system are sensed to control the refiner disk spacing by way of a gear otor.
  • a reduction in intensity therefore, may be accomplished by increasing the number of refining surfaces in a given refiner. is the object of the present invention to provide a new and improved multi-disk refiner for low intensity treatment of pulp fiber.
  • the above object is achieved, according to the present invention, in providing an increase in the number of refining surfaces by mounting several rigid refiner disks in a manner so as to provide each disk with complete freedom of axial movement.
  • the rotating refiner disks can be mounted so as to be axially slidable on a torque trans ⁇ mitting section of a shaft so that rotational forces can be transmitted to the disks while an axial motion thereof is not restrained.
  • the torque transmitting section of the shaft may be splined or have a geometrical cross- sectional (e.g. square, triangular or other polygon) and the rotatable disks may have correspondingly shaped central openings receiving the respective torque trans ⁇ mitting section.
  • Non-rotatable or fixed refiner disks can be supported by several support leraens (e.g. pins, quide rails and the like) which prevent rotation of the disk, but permit each such refiner disk to slide in the axial direction.
  • the shaft and the stator support elements can be constructed of a hard material, and the sliding members may be constructed of softer, wearable material.
  • the sliding members may also be molded from a structural plastic material.
  • the non-rotating disks each include a central aperture for receiving the shaft therethrough and for supporting the flow of paper stock and the rotating disks each include ports to permit the paper stock to flow therethrough and be properly distributed to each pair of refiner disks.
  • the refiner may be loaded to the desired power by axially adjusting the last stationary element of a series of refiner disks.
  • the number of plates may easily be increased or decreased in the refiner to match the process requirements.
  • FIG. 1 is a fragmentary sectional view of a refiner constructed in accordance with the present invention
  • FIG. 2 is a fragmentary enlarged view of a portion of the refiner illustrated in FIG. 1
  • FIG. 3 is a partial sectional view taken sub ⁇ stantially along the parting line III-III of FIG. 1;
  • FIG. 4 is a fragmentary sectional view illustrating a shaft having a square torque transmitting section
  • FIG. 5 is a fragmentary sectional view illustrating a shaft having a triangular torque transmitting section
  • FIG. 6 is a fragmentary sectional view illustrating a shaft having a hexagonal torque transmitting section
  • FIG. 7 is a fragmentary sectional view illustrating an arcuate guide rail support structure
  • FIG. 8 is a fragmentary sectional view illustrating a trapezoidal guide rail support structure
  • FIG. 9 is a fragmentary sectional view illustrating an oval support element structure.
  • a refiner constructed in accordance with the present invention, is generally illustrated at 10 as comprising a first housing part 12 having a recess therein which, with a second housing part 14 defines a refining chamber 16.
  • the refiner comprising a paper stock flow path including a paper stock input 18 to the refining chamber 16 and a paper stock output 20 from the refining chamber 16.
  • the housing part 12 comprises a bore 22 with a bearing 24 therein supporting a shaft 26 for rotation.
  • the shaft 26 includes a splined section 28 for mounting a plurality of rotatable refiner discs 30 each of which has a central aperture 32 co plemental to the spline 28.
  • each rotatable disc 30 comprises a plurality of ports 34 for supporting a flow of stock.
  • a plurality of refiner discs 36 each of which is provided with a central aperture 38 for receiving the shaft there ⁇ through and for supporting a flow of paper stock.
  • Each of the plates 36 further comprises a plurality of bores 42 for receiving a respective pin 44 mounted to the housing part 12.
  • Each of the rotatable refiner discs 30 is axially slidable along the spline section 28 of the shaft 26.
  • each of the non-rotatable refiner discs is axially slidable on the pins 44.
  • Each of the refiner discs 30 and 36 and each of a pair of end discs 46 and 48 respectively mounted to the housing parts 12 and 14, comprise refiner bars which accomplish the actual refining operation.
  • the refiner may be loaded with the desired power by axially adjusting the last stationary element, in this case the element 46 or the element 48. This may be accomplished by screw techniques, or by a gear motor or the like and essentially adjust the relative spacing of the housing parts 12 and 14, as indicated by the double-headed arrow 50.
  • the splined shaft may be provided with an end cap 52 secured to the distal end of the shaft by way of at least one screw 54 which may be employed to maintain the rotatable refiner disc on the shaft prior to assembly of the left and right-hand sides of the housing parts illustrated in FIG. 1. After assembly, of course, the axial movement of the refiner disc are limited by the fixed refiner disc 46 and 48.
  • a refiner disk 36A includes a square central aperture 32A for receiving a square torque transmitting section 26A of the shaft.
  • a disk 36B includes a central aperture 32B in the form of a triangle for receiving a triangular section 26B of a shaft.
  • the disk 36C includes a hexagonal central opening 32C for receiving a hexagonal section 26C of a shaft.
  • FIGS. 7-9 Examples of such structures are illustrated in FIGS. 7-9.
  • a disk 36D includes a projection having an arcuate groove 42D for slidingly receiving a complemental arcuate projection 44D which is secured to the refiner housing.
  • FIG. 8 illustrates a disk 36E carrying a trapezoidal projection 42E to be slidingly received in a complemental groove 44E extending from the wall of the refiner housing.
  • FIG. 9 illustrates the use of an oval support pin 44F to be slidingly received in an oval aperture 42F provided on an extension of the refiner disk 36F.

Landscapes

  • Paper (AREA)
  • Crushing And Grinding (AREA)

Abstract

Un raffineur de pâte à papier permet un traitement de faible intensité de la fibre de cellulose afin d'accroître les caractéristiques de résistance de la cellulose tout en réduisant l'énergie spécifique requise, grâce à l'augmentation du nombre de surfaces de raffinage. Ce nombre est assuré grâce à une pluralité de disques de raffinage rotatifs (30) et non-rotatifs (36) qui sont mobiles axialement à l'intérieur d'un raffineur, les disques rotatifs étant montés sur une section (28) d'un arbre (26) de transmission de couple et les disques non-rotatifs étant montés en contre-rotation sur une pluralité d'éléments de support (44). Dans le but de moduler le nombre de croisements de barreaux de raffinage, on peut ouvrir le logement (12) et charger le nombre souhaité de disques de raffinage, rotatifs et non-rotatifs, dans la chambre de raffinage (16) respectivement sur l'arbre et les éléments de support.
EP86901692A 1986-02-25 1986-02-25 Raffineur a disque possedant de multiples disques rigides coulissants Expired EP0288456B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1986/000394 WO1987005061A1 (fr) 1986-02-25 1986-02-25 Raffineur a disque possedant de multiples disques rigides coulissants

Publications (2)

Publication Number Publication Date
EP0288456A1 true EP0288456A1 (fr) 1988-11-02
EP0288456B1 EP0288456B1 (fr) 1990-06-06

Family

ID=22195393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86901692A Expired EP0288456B1 (fr) 1986-02-25 1986-02-25 Raffineur a disque possedant de multiples disques rigides coulissants

Country Status (8)

Country Link
US (1) US4783014A (fr)
EP (1) EP0288456B1 (fr)
JP (1) JP2630768B2 (fr)
AU (1) AU592554B2 (fr)
BR (1) BR8607252A (fr)
DE (1) DE3671766D1 (fr)
IN (1) IN167223B (fr)
WO (1) WO1987005061A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5011091A (en) * 1989-08-10 1991-04-30 Haybuster Manufacturing Inc. Cellulose fiberization apparatus
US5119995A (en) * 1990-11-20 1992-06-09 Andritz Sprout-Bauer, Inc. Keyway for refiner disc
US5398877A (en) * 1993-07-09 1995-03-21 Global Technologies Group Multi-disc refiner with free floating plate mechanism
US5445328A (en) * 1993-08-25 1995-08-29 Andritz Sprout-Bauer, Inc. Dual zone refiner with separated discharge flow control
US5934585A (en) * 1997-05-05 1999-08-10 J & L Fiber Services Inc Refiner plate assembly and method of mounting
US6053440A (en) * 1999-03-02 2000-04-25 Beloit Technologies, Inc. Tangential discharge disk refiner
US7188792B2 (en) * 2003-03-18 2007-03-13 Gl&V Management Hungary Kft. Refiner rotor assembly with a hub having flow-through ports
US7347392B2 (en) * 2005-02-28 2008-03-25 J & L Fiber Services, Inc. Refiners and methods of refining pulp
EP1964611B1 (fr) * 2005-12-14 2019-03-13 Nara Machinery Co., Ltd. Dispositif de granulation/désintégration de granulés et procédé de granulation/désintégration de granulés
JP4698439B2 (ja) * 2006-02-27 2011-06-08 株式会社奈良機械製作所 粉粒体の解砕整粒装置
WO2009155541A2 (fr) * 2008-06-21 2009-12-23 J&L Fiber Services, Inc. Procédé et ensemble plaque de raffineur comprenant une évacuation pour la zone de raffinage
JP5709387B2 (ja) * 2009-12-26 2015-04-30 京セラ株式会社 回転部材およびそれを用いた撹拌用又は破砕用装置
US8944074B2 (en) * 2010-05-05 2015-02-03 R.J. Reynolds Tobacco Company Refining apparatus
DE102019132448A1 (de) * 2019-11-29 2021-06-02 Voith Patent Gmbh Faserstoff-Behandlungsvorrichtung
US11707742B2 (en) * 2020-11-24 2023-07-25 Valmet Technologies Oy Refiner disc and hub assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1991899A (en) * 1933-04-04 1935-02-19 Halvor F Holbeck Grinding apparatus
US2661667A (en) * 1950-04-13 1953-12-08 William V Knoll Apparatus for refining papermaking material
US3448934A (en) * 1966-08-12 1969-06-10 Frank C Vaughan Refining apparatus
US3717309A (en) * 1970-11-09 1973-02-20 H Luker Grinding mill
BR7500262A (pt) * 1975-01-15 1976-08-17 M Pilao Aperfeicoamento em refinador para polpa de madeira ou similar
US4570862A (en) * 1983-09-12 1986-02-18 Beloit Corporation Flexible disk refiner and method
US4614309A (en) * 1984-09-18 1986-09-30 Beloit Corporation Rigid link multiple disk refiner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8705061A1 *

Also Published As

Publication number Publication date
EP0288456B1 (fr) 1990-06-06
JP2630768B2 (ja) 1997-07-16
JPH01502039A (ja) 1989-07-13
AU5544786A (en) 1987-09-09
WO1987005061A1 (fr) 1987-08-27
DE3671766D1 (de) 1990-07-12
BR8607252A (pt) 1988-12-06
IN167223B (fr) 1990-09-22
AU592554B2 (en) 1990-01-18
US4783014A (en) 1988-11-08

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